<template>
  <div class="upload-container">
    <el-button :style="{ background: color, borderColor: color }" icon="el-icon-upload" size="mini" type="primary"
      @click=" dialogVisible = true">
      upload
    </el-button>
    <el-dialog :visible.sync="dialogVisible">
      <el-upload :multiple="true" :file-list="fileList"  :auto-upload="false" :show-file-list="true" :on-remove="handleRemove"
        :on-change="(file, fileList) => { handleChange(file, fileList) }" class="editor-slide-upload" action="#"
        list-type="picture-card">
        <el-button size="small" type="primary">
          Click upload
        </el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">
        Cancel
      </el-button>
      <el-button type="primary" @click="handleSubmit">
        Confirm
      </el-button>
    </el-dialog>
  </div>
</template>

<script>
// import { getToken } from 'api/qiniu'
import { Base64 } from 'js-base64'
export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      fileList: []
    }
  },
  mounted() {
    this.getOssData();
  },
  methods: {
    checkAllSuccess() {
      return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map(v => this.listObj[v])
      if (!this.checkAllSuccess()) {
        this.$message('Please wait for all images to be uploaded successfully. If there is a network problem, please refresh the page and upload again!')
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    async handleChange(file, fileList,) {
      if (file.status !== 'ready') return
      let data = this.$cookies.get('ossParams')
      if (!data) {
        this.$message.error('上传失败，缺少ossParams')
        return
      }
      data = JSON.parse(Base64.decode(data))
      const res = await this.$upload(data, file).catch(res => false);
      if (!res) return;
      this.fileList.push({
        name: file.name,
        url: res,
      })
      const img = new Image()
      img.src = res;
      const fileName = file.uid
      img.onload =  () => {
        this.listObj[fileName] = { hasSuccess: true, url: res, uid: file.uid, width: this.width, height: this.height }
      }

    },
    getOssData() {
      if (!this.$cookies.get('ossParams')) {
        const res = {
          oss_host_url: 'https://global-application-001.downline.cn',
          app_main_url: 'casekadingche.downline.cn',
          oss_accesskey: 'hgV5TOnVHZWvXYV98QMqm1Avt7Q3mD',
          oss_accessid: 'scj0YOTsBy74ZWGy'
        }
        const ossParams = {
          key: res['app_main_url'] + '/goods_image/',
          accesskey: res['oss_accesskey'],
          OSSAccessKeyId: res['oss_accessid']
        }
        this.$cookies.set('ossParams', Base64.encode(JSON.stringify(ossParams)))
      }
    },
  },
}
</script>

<style lang="scss" scoped>
.editor-slide-upload {
  margin-bottom: 20px;

  ::v-deep .el-upload--picture-card {
    width: 100%;
  }
}
</style>
